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发明名称
Способ изготовления войлока для музыкальных инструментов
摘要
申请公布号
SU31620(A1)
申请公布日期
1933.08.31
申请号
SU19320112119
申请日期
1932.07.04
申请人
YAKOVLEV D.E.
发明人
YAKOVLEV D.E.
分类号
D04H1/74
主分类号
D04H1/74
代理机构
代理人
主权项
地址
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